Henrik n



H. N. GARSON.

SPRING SUSPENSION FOR MOTOR VEHICLES AND THE LIKE.

APPLICATION FILED MAY 8. 1920-.

1 ,412,733, Patented Apr. 11, 1922.

1 v 14,; mica m1,

HENRIK N. season,

PATENT OFFICE.

on NEW YORK, n. Y.

SPRING SUSPENSION FOR MOTOR VEHICLES AND THE LIKE.

Specification of Letters Patent.

Patented Apr. 11, 1922.

Application filed May 8, 1920. Serial No. 379,799.

To al Q'YYLOIIL it may concern:

Be it known that I, HENRTK N. GARsoN, a subject of Norway, residing inthe city of New York, county and State of New York, and. whosepost-o'liice address 20 Church Street, New York city, N. Y., haveinvented certain new and useful Improvements in Spring Suspensions forMotor Vehicles and the like, of which the following is a full, clear,and exact specification.

My improvements, although more particularly applicable to motorvehicles, and specifically vehicles for passenger service, may beapplied to any wheeled carriage. The object of my invention is toprovide a spring suspension which will so absorb shock impulsestransmitted by the passage of the wheels over irregularities in the roadsurface, that the movement of the chassis in re sponse to such shockimpulses will be reduced to a minimum; and a further object of myinvention is to provide a spring suspension of this type which willpermit the mounting of the chassis at a very low point relative to theaxial points of the wheels, thus lowering its centre of gravity beyondthat permitted by the forms of spring suspension now in use a furtherobject of my invention is to reduce side sway of the chassis and body.

The invention will be understood by reference to the accompanyingdrawing, illustrating an embodiment thereof, in which Fig. 1, is a planview, somewhat diagrammatic, showing a chassis equipped with a preferredform of my improvements; and

Fig. 2, is a side elevation of the same.

Fig. 3, is a sectional detail view of means for adjusting the tension ofthe springs which act as suspension members for the carriage.

In the embodiment of the invention illustrated in the drawings thechassis comprises the tubular longitudinal frame members 1, and thetransverse frame members 2, upon the latter members being mounted theengine 3, and the clutch and transmission members 4, 5, respectively,steering apparatus being illustrated at 6. The longitudinal framemembers 1 at each end have secured thereto an apertured bearing member7, which is embraced by the apertured yoke 8 of a rocker 9. A rod 10 ateach end of the longitudinal frame members 1 pivotally connects the tworockers 9, at that nd of the chassis, to the appropriate bearingmembers.

Each rocker is formed with a depending extension 11 which is connectedby means of two adjustable links 12, 12 with a sleeve 13 slidablymovable upon the appropriate longitudinal frame member 1. Although Ihave shown two links for each rocker to avoid throwing an eccentricstress upon the sleeve, it will be understood that a single link willsuffice. Each link comprises two sections, one section being pivotallyconnected at 14 to the rocker and the second section being pivotallyconnected at 15 to the sleeve, and the two link-sections are reverselythreaded in a turn-buckle 1.6 which serves as the adjusting member. Eachrocker is also formed with a contact surface 17 to co-act with thesimilarly formed face of a stop-member 18 secured upon the appropriatelongitudinal frame member, as illustrated in Fig. 2. The purpose of thislatter construction will hereinafter b set forth in detail.

Intermediate each sleeve 13 and a rear stop member, is a helical spring19 surrounding the appropriate longitudinal frame member; andintermediate the two sleeves on each side of the chassis and likewisesurrounding the longitudinal frame member is a spring 20.

. In the operation of the device, it will. be understood that thesprings will be so proportioned to the weight of the :hassis and theload supported thereby that the springs will act through the sleeves l3and links 12 upon the rockers 9 to maintain the latter n the positionillustrated in Fig. 2 when the chasfs is at rest and the carriage freefrom its normal load. In this position. the face 17 of the rocker (whichin practice will be covered with leather, fabric or the like) will restagainst the opposed faceof the stop member 18. The springs preferablywill be so proportioned that when the normal load is added to the weightof the chassis, the depending extensions 11 of the rocker will swingoutwardly to substantially vertical position, so that the wheel may havea limited descent and rise under the inequalities of the road surfacewithout causing surfaces 1'? and 18 of the rocker and its stop member tocome in harsh contact. If the load is increased to any great extentabove normal, then adjustment of the links by means of the turn-buckles16 will increase the compression of the springs to secure the desiredrelative positions of the rockers and stop members. Now, when thechassis is set in motion and a wheel passes 20, the latter acting as ashock ahsorhcr ant over an obstruction and is elevated, its rockerpivotally moves on rod 10 against the compression of the appropriatehelical spring 19, and the resultant shock is thus thrown longitudinallyof the chassis, instead ot ver= tieally as in the forms of spring sus)ension now in use. Wlien the force Which thus swings the rocker againstthe compression of the spring is dissipated and the rocker is swung hackinto normal position hy the movement oit sleeve 13 the latter will hecon trolled against undue movement hysorins preventing any sudden andharsh contact between the contacting faces ot the rocker ant stop.member 18.

It will he noted that the loci: nuts 23' are provided for theturn-buckle l8, so that when the links 12 and iQ -aro adjusted they willhe held in such adjusted position. Each lOClCGl is provided with anupwardly projecting extension or arm 21' which, when. the Wheel carriedhy the rocker is moved upwardly swings inwardly towards a stop 22 andhence the arm in conjunction with the stop l mits the upward moven'ientoi the Wheel. and the rocker is prevented from turning an execs-- sivedistance upon the breakage of a spring; 19 or a link 12.

While 1 have shown spiral springs in the embodiment of the inventionillustrated in the drawing, it Will be understood that lent springsmaybe. arranged on the chassis for the same purpose. it Will also heunderstood that the two links on each side otthe chassis may cross eachother end be connected to sleeves Which engage a single spring dis Inosed between them with exactl the same iront andrear transversetra'n'ie members.

In a motor driren carriage, a frame, tour Wheels tlnfough which thecarriage is I supported upon a road surface. a rocker pivotelly connectin each Wheel and the frame, a set of two springs carried by the frame atsch. longitudinal side of the latter. links connectii each set ofsprings with the rowers. a i. a lnunper spring: disposed inter- -mediatethe said lin L at their points ol connection with the said springs. i

3. in a device of the character described, l'i'liillitl llg a 'lrame, awheel, and a rocker pivotnll connecting the Wheel and the trame. anunyieldin stop device on the l'raingand a second unyielding; stop deviceon the rocker adapted tor positive contactwith the first mentioned stopdevice, uherehythe swinging movement of the rocke .u limited. I v iggnedat New r in, the countyfof o id State ot' New York, this 29, J V. Dflfltl; i

' HENRI-K N. S meon;

